Current behaviour

Signups completed via the "Signups > Show" page use the form {% form 'signup', account, class: "form-horizontal" %}

There is a validation script included in that page {{{{ 'validate_signup.js' | javascript_include_tag }}}} which validates all the fields passed during signup.

Signups completed via the "Invitee Signups > Show" page use the form {% form 'invitation_signup', user, class: "form-horizontal" %} but there is no validation script on this page and it is not possible to include the same validation script as on the standard signup page as different parameters are passed in the form.

Expected behaviour

Both the pages; "Signups > Show" & "Invitee Signups > Show" have validation scripts for the user signing up.